#pragma once

#include <QtWidgets/QMainWindow>
#include <QDebug>
#include <QDomDocument>
#include <QFile>
#include <QFileDialog>
#include <QMessageBox>
#include <QStack>
#include <QTextStream>
#include <QTime>

#include "ui_niirs.h"

#include <opencv2/opencv.hpp>
#include <opencv2/imgproc/types_c.h>
#include <opencv2/core/core.hpp>

#include <math.h>
#include <omp.h>
//#include <stdlib.h>
//#include <iostream>

#include "gdal_priv.h"

using namespace std;

struct ImgInfo
{
	GDALDataType dataType;  //标示数据类型
	int bandCount;                   //数据波段数目
	int xSize;                             //数据在x方向上的尺寸
	int ySize;                             //数据在y方向上的尺寸
	int xOffset;                          //x方向上的偏移；
	int yOffset;                          //y方向上的偏移；
	char projWkt[1024];            //数据的投影方式
	double geoTransform[6];    //数据的仿射坐标
	double noData;                   //数据的背景值
};

class NIIRS : public QMainWindow
{
	Q_OBJECT

public:
	NIIRS(QWidget* parent = Q_NULLPTR);

	void setXmlInterface(QString strXmlInterface);
	
	/* 计算NIIRS
	* @return NIIRS */
	double calculateNiirsScore();
	//计算10个客观参数
	void calculateObjectivePara();
	//void calculateEvaluationImage();
	double calculateRER();

	/*
	* @brief 获取图像基础信息并保存至结构体
	* @param srcImgPath 输入文件路径
	* @param imgInfo 结构体，保存获取的tiff文件信息
    * @return 返回错误信息 */
	int getImageInfo(const char* srcImgPath, struct ImgInfo* imgInfo);

	/*
	* @brief 按波段读取tiff
	* @param srcImgPath 输入文件路径
	* @param imgInfo 结构体，存储tiff文件信息
	* @param imgArray 读取的tiff数组
	* @param bandIndex 要读取的波段，bandIndex=0,则读取所有波段
    * @return 返回错误信息 */
	int readTiffFile(const char* srcImgPath, ImgInfo imgInfo, void* imgArray, int bandIndex);

	void initTableWidget(int rowNum, int colNum);
	void setTableWidgetValue(double val, int row, int col);

	/*
	* @brief 遍历文件夹下文件
	* @param path 输入文件路径
	* @param fileType 文件格式
    * @return 文件路径absoluteFilePath,返回空值时为存在错误 */
	QStringList getAllFiles(QString path, QString fileType);

public slots:
	void onRadioBtn_Visi();
	void onRadioBtn_Infra();

	void on_pbtOpenImg_clicked();
	//void on_pbtOpenEdgeX_clicked();
	//void on_pbtOpenEdgeY_clicked();

private:
	Ui::NIIRSClass ui;

	/* 计算噪声增益
	* @param kernel MTFC所使用的滤波器
	* @return MTFC_G噪声增益	*/
	double calculateMTFC_G(cv::Mat kernel);
	////计算信噪比，mean/StdDev
	//double calculateSNR(cv::Mat img);

	/* 计算数字图像亮度
	* @return 灰度图片平均亮度	*/
	double calculateMeanStdDev(cv::Mat img);
	////计算图像标准差方差
	//float calculateStdDev(cv::Mat img);
	//计算图像对比度
	double calculateContrastRatio(cv::Mat img);
	////计算信息熵
	//double calculateEntropy(cv::Mat img);
	/*
	* @brief 计算单波段的图像熵
	* @param imgArray tiff数组
	* @param maxVal tiff波段中的最大值
    * @return 该波段的图像熵 */
	double calculateTiffEntropy(unsigned short* bandBuf, int bufSize, int maxVal);
	//计算相对边缘相应
//	double calculateERx(cv::Mat img);
//	double calculateERy(cv::Mat img);
	//return pair.first:ER, pair.second:H
	QPair<double, double> calculateERx(cv::Mat img);
	QPair<double, double> calculateERy(cv::Mat img);

	QPair<double, double> calculate_rer_h(cv::Mat img, cv::Point pointA, cv::Point pointB);

	cv::Point2d calculateFootPoint(array<cv::Point, 3>& ps);
	//float SFRCalculation(cv::Mat& ROI, double gamma);
	//void de_Gamma(cv::Mat& Src, double gamma);
	//std::vector<double> CentroidFind(cv::Mat& Src, std::vector<double>& y_shifts, double* CCoffset);
	//void SLR(std::vector<double>& Cen_Shifts, std::vector<double>& y_shifts, double* a, double* b);
	//void ReduceRows(double slope, int* ImgHeight);
	//std::vector<double> OverSampling(cv::Mat& Src, double slope, double CCoffset, int height, int width, int* SamplingLen);
	//std::vector<double> HammingWindows(std::vector<double>& deSampling, int SamplingLen);
	//void DFT(std::vector<double>& data, int size);


	//陡度
	//基于sobel算子，计算平均梯度
	double gradient_Sobel(cv::Mat img);
	//基于Laplacian算子，拉普拉斯导数，评价清晰度
	double definition_Laplacian(cv::Mat img);
	//四个方向的角二阶矩
	void get_GLCM_0deg(cv::Mat& input, cv::Mat& dst);
	void get_GLCM_90deg(cv::Mat& input, cv::Mat& dst);
	void get_GLCM_45deg(cv::Mat& input, cv::Mat& dst);
	void get_GLCM_135deg(cv::Mat& input, cv::Mat& dst);
	//计算二阶矩的特征值
	double calculateASM(cv::Mat& src);
	//PIQE
	double calculatePIQEScore(cv::Mat& img);
	bool noticeDistCriterion(cv::Mat Block, int nSegments, int blockSize_1,
		int windowSize, float blockImpairedThreshold, int blockSize);
	cv::Mat segmentEdge(cv::Mat blockEdge, int nSegments, int blockSize_1, int windowSize);
	float noiseCriterion(cv::Mat Block, int blockSize_1, float blockVar, float blockStdDev);
	float centerSurDev(cv::Mat Block, int blockSize_1);

	// 计算垂足的坐标，array：点、直线两端点
	cv::Point calculate_foot_point(array<cv::Point, 3>& ps);
	// 计算两点距离
	float pointDistance(cv::Point pt1, cv::Point pt2);
	//// 计算两直线交点
	//cv::Point line_intersection(array<cv::Point, 2>& line1, array<cv::Point, 2>& line2);
	//// 根据一条线的点pt、斜率k、另一条水平或垂直的直线的端点，求交点
	//cv::Point point_k_edge_intersection(cv::Point pt, double k, array<cv::Point, 2>& line);
	//// 计算点到直线距离
	//int calculate_distance(array<cv::Point, 3>& ps);

	bool jpegTest = false;
	//int mBandCount = 0;

    QString mXmlInterface = "";

    //QString mXmlImgPath = "/home/testdata/19data/VALID-ALIGACE/JB19-2_MSS_000811113_MMB04_001_01_001_003_L1/JB19-2_MSS_000811113_MMB04_001_01_001_003_L1.tiff";
    QString mXmlImgPath = "";//D:\\A_testdata\\niirs_test\\data\\GF2_mask1024.tif
    QString mXmlTopLeftX = "0";//311,336
    QString mXmlTopLeftY = "0";//324,293
    QString mXmlBottomRightX = "0";//335,348
    QString mXmlBottomRightY = "0";//337,311

    QString mXmlProductDir = "";
    QString mResultXmlDir = "";

    cv::Point mRerEdgePointA;
    cv::Point mRerEdgePointB;


	double imgLight = 0.0;                //亮度
	double imgStdDev = 0.0;             //标准差
	double imgContrastRadio = 0.0;  //对比度
	double imgEntropy = 0.0;            //熵
	double imgSNR = 0.0;                 //信噪比
	double imgGradient = 0.0;          //陡度
	double imgDefinition = 0.0;        //清晰度
	double imgASM = 0.0;                //角二阶矩
	double imgPIQE = 0.0;                //PIQE

	double imgRER = 0.986;              //相对边缘响应

};